The EDX range is the entry point to KZ: in-ear earphones with a single dynamic driver, a detachable cable and a low price. The problem is that there are five models with very similar names. This guide explains what changes between the KZ EDX, the KZ EDX Lite, the KZ EDX Pro, the KZ EDX Pro X and the KZ EDX Ultra. The EDX and EDX Lite are no longer sold in the shop; we keep them in the guide for reference.
In short
- All have one dynamic driver per side and a detachable 2-pin cable.
- EDX and EDX Lite are the cheapest; EDX Pro and EDX Ultra, the middle step; EDX Pro X, the top one.
- Watch the connector: the original EDX uses Pin B; the rest, Pin C.
Comparison table
| EDX | EDX Lite | EDX Pro | EDX Ultra | EDX Pro X | |
|---|---|---|---|---|---|
| Driver | 10 mm dynamic | Super-linear dynamic | 10 mm dynamic, dual magnetic circuit | 10 mm dynamic, dual magnet | Super-linear dynamic |
| Frequency | 10–20000 Hz | 20–40000 Hz | 10–20000 Hz | 20–40000 Hz | 20–40000 Hz |
| Sensitivity | 112 dB | 108 ± 3 dB | 112 dB | 112 ± 1 dB | 108 ± 3 dB |
| Impedance | 23 Ω | 23 ± 3 Ω | 24 Ω | 26 Ω | 23 ± 3 Ω |
| Cable | 125 ± 5 cm | Flat, 120 ± 5 cm | Flat OFC, 125 ± 5 cm | Silver-plated, 120 ± 5 cm | Flat, 120 ± 5 cm |
| Connector | Pin B | Pin C | Pin C | Pin C | Pin C |
Data from the official KZ product pages (kz-audio.com).
What they have in common
All five are dynamic-driver earphones: a single diaphragm per side reproduces all the sound, with present bass and a warm character. All are worn with the cable over the ear, come in a version with a mic and, at around 23–26 Ω and over 108 dB, work with any phone.
The differences that matter
- Connector. The original EDX uses Pin B (flat); the others, Pin C (hooded). It matters if you want to add a Bluetooth adapter or change the cable.
- Cable. The EDX Ultra comes with a silver-plated cable; the EDX Lite, EDX Pro and EDX Pro X, with a flat cable.
- Driver. The EDX, EDX Pro and EDX Ultra list a 10 mm driver; the Pro and the Ultra use a dual-magnet design. The EDX Lite and EDX Pro X use the driver KZ calls super-linear.
- Reviews. The EDX Pro is the model with the most customer reviews in our store.
Prices
From least to most: EDX and EDX Lite, then EDX Pro and EDX Ultra, and finally EDX Pro X. Current prices:
Everyday earphones, Dynamic drivers, KZ, Musicians & stage
44,95 €34,95 €Select options This product has multiple variants. The options may be chosen on the product page
Everyday earphones, Dynamic drivers, KZ
34,95 €Select options This product has multiple variants. The options may be chosen on the product page-
Everyday earphones, Dynamic drivers, KZ
43,95 €Select options This product has multiple variants. The options may be chosen on the product page
Which to choose
- The safe bet: KZ EDX Pro, the most-reviewed model.
- With a silver-plated cable: KZ EDX Ultra.
- The top of the range: KZ EDX Pro X.
Frequently asked questions
Do they work with Bluetooth adapters?
Yes. The Pin C models work with the KZ AN01, KZ AE01 and KZ AZ09 (Pin C version). The original EDX, only with the KZ AZ09 in the Pin B version.
Do they need an amplifier?
No. They are among the easiest KZ models to drive.
What if I want more detail?
The next step is the hybrids, which add balanced armatures to the dynamic driver.
Keep reading
- Best KZ earphones under €50
- KZ Castor vs Castor Pro: differences and which to choose
- Which KZ earphones to buy: the complete guide by use and budget
- KZ (Knowledge Zenith): who they are and why they sound so good for so little
- KZ DQS vs KZ EDX Pro: which to choose at the same price
- KZ EDC Pro, EDX Lite or EDX: the cheapest KZ models compared
Every KZ Componentes order comes with a 3-year warranty, 30-day returns and support from our team in Spain. Torn between models? Write to us and we will help you choose.
Your next step
Still torn between them?
Each model page has all its comparisons and who it suits. If you want us to make it easy, take the quiz.
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